Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing autoclaved aerated concrete product from molybdenum tailing slurry
The invention provides a method for preparing an autoclaved aerated concrete product by using molybdenum tailing slurry. The method comprises the following steps: (1) preparing the following materials in percentage by mass: 60-70% of molybdenum tailings, 10-20% of cement, 10-20% of lime, 2-5% of gypsum and 1-5% of an additive; (2) adopting molybdenum tailing slurry as a molybdenum tailing raw material, sequentially adding cement, lime, gypsum and an additive into the molybdenum tailing slurry, uniformly stirring to form slurry, heating the slurry to 40 +/-2 DEG C, adding a foaming agent, and stirring for 25-35 seconds to obtain slurry to be poured; (3) pouring the slurry obtained in the step (2) into a mold for foaming maintenance, demolding and cutting after foaming maintenance, and putting into an autoclave for autoclaved maintenance; and after the autoclaved curing is completed, drying to obtain the autoclaved aerated concrete block. The molybdenum tailing slurry is used for replacing traditional siliceous materials such as river sand and coal ash and is used for producing autoclaved aerated concrete products, so that a large amount of molybdenum tailing slurry can be treated and utilized, and the problems that the molybdenum tailings occupy land, pollute the environment and the like are solved.
本发明提供一种利用钼尾矿浆制备蒸压加气混凝土制品的方法，包括以下步骤：(1)按照如下质量百分比配制物料：钼尾矿60％～70％、水泥10％～20％、石灰10％～20％、石膏2％～5％、外加剂1％～5％；(2)其中钼尾矿原料采用钼尾矿浆，将水泥、石灰、石膏及外加剂依次加入钼尾矿浆中，搅拌均匀成料浆，将料浆加热至40±2℃，再加入发泡剂搅拌25～35s得到待浇注的浆料；(3)将步骤(2)得到的浆料浇注到模具中进行发泡养护，发泡养护完成后经脱模、切割，放入蒸压釜中进行蒸压养护；蒸压养护完成后烘干得到蒸压加气混凝土砌块。本发明用钼尾矿浆代替河砂、粉煤灰等传统硅质材料，用于生产蒸压加气混凝土制品，从而能够处理、利用大量的钼尾矿浆，解决钼尾矿占用土地、污染环境等问题。
Method for preparing autoclaved aerated concrete product from molybdenum tailing slurry
The invention provides a method for preparing an autoclaved aerated concrete product by using molybdenum tailing slurry. The method comprises the following steps: (1) preparing the following materials in percentage by mass: 60-70% of molybdenum tailings, 10-20% of cement, 10-20% of lime, 2-5% of gypsum and 1-5% of an additive; (2) adopting molybdenum tailing slurry as a molybdenum tailing raw material, sequentially adding cement, lime, gypsum and an additive into the molybdenum tailing slurry, uniformly stirring to form slurry, heating the slurry to 40 +/-2 DEG C, adding a foaming agent, and stirring for 25-35 seconds to obtain slurry to be poured; (3) pouring the slurry obtained in the step (2) into a mold for foaming maintenance, demolding and cutting after foaming maintenance, and putting into an autoclave for autoclaved maintenance; and after the autoclaved curing is completed, drying to obtain the autoclaved aerated concrete block. The molybdenum tailing slurry is used for replacing traditional siliceous materials such as river sand and coal ash and is used for producing autoclaved aerated concrete products, so that a large amount of molybdenum tailing slurry can be treated and utilized, and the problems that the molybdenum tailings occupy land, pollute the environment and the like are solved.
本发明提供一种利用钼尾矿浆制备蒸压加气混凝土制品的方法，包括以下步骤：(1)按照如下质量百分比配制物料：钼尾矿60％～70％、水泥10％～20％、石灰10％～20％、石膏2％～5％、外加剂1％～5％；(2)其中钼尾矿原料采用钼尾矿浆，将水泥、石灰、石膏及外加剂依次加入钼尾矿浆中，搅拌均匀成料浆，将料浆加热至40±2℃，再加入发泡剂搅拌25～35s得到待浇注的浆料；(3)将步骤(2)得到的浆料浇注到模具中进行发泡养护，发泡养护完成后经脱模、切割，放入蒸压釜中进行蒸压养护；蒸压养护完成后烘干得到蒸压加气混凝土砌块。本发明用钼尾矿浆代替河砂、粉煤灰等传统硅质材料，用于生产蒸压加气混凝土制品，从而能够处理、利用大量的钼尾矿浆，解决钼尾矿占用土地、污染环境等问题。
Method for preparing autoclaved aerated concrete product from molybdenum tailing slurry
一种利用钼尾矿浆制备蒸压加气混凝土制品的方法
YU ZEXU (Autor:in) / ZHU ZENGWEN (Autor:in) / XU YU (Autor:in) / WU XU (Autor:in)
10.05.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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